Samuel Friedrich Diez ( 1803 - 1873 ) was a German painter. Samuel Friedrich Diez s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from 1584.51 USD for A portrait of Princess Augusta in a blue dress in 2007 to 7614.99 USD for Herzog prosper ludwig von arenberg (1785-1861) Duc Prosper Louis de Arenberg (1785-1861) Charles BILLOIN (Brux